is a

district A district is a type of administrative division that in some countries is managed by the local government. Across the world, areas known as "districts" vary greatly in size, spanning regions or county, counties, several municipality, municip ...

located in

Niigata Prefecture is a Prefectures of Japan, prefecture in the Chūbu region of Honshu of Japan. Niigata Prefecture has a population of 2,131,009 (1 July 2023) and is the List of Japanese prefectures by area, fifth-largest prefecture of Japan by geographic area ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

. As of July 1, 2019, the district has an estimated

population Population is a set of humans or other organisms in a given region or area. Governments conduct a census to quantify the resident population size within a given jurisdiction. The term is also applied to non-human animals, microorganisms, and pl ...

of 4,578 with a

density Density (volumetric mass density or specific mass) is the ratio of a substance's mass to its volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' (or ''d'') can also be u ...

of 174 persons per km². The total area is 26.27 km².

Municipalities

The district consists of only one village: *

Kariwa is a village located in Niigata Prefecture, Japan. , the village had an estimated population of 4,578 in 1613 households, and a population density of 174 persons per km². The total area of the village was . Geography Kariwa is located in centra ...

History

The district (excluding the west side of Kashiwazaki) was once part of the now-defunct Koshi District until the

Heian period The is the last division of classical Japanese history, running from 794 to 1185. It followed the Nara period, beginning when the 50th emperor, Emperor Kammu, moved the capital of Japan to Heian-kyō (modern Kyoto). means in Japanese. It is a ...

when the district was created under the name of Mishima District. Prior to the split, Mishima District covered the cities of Kashiwazaki (excluding the western part of the city, being the areas of Agewa (Kamiwa), Takaze (Takahane) and Warabino from the former municipality of Kakizaki) and Nagaoka (parts of the former towns of Oguni and Koshiji), and the village of

. When Santō District split off from Koshi District during the

Edo period The , also known as the , is the period between 1600 or 1603 and 1868 in the history of Japan, when the country was under the rule of the Tokugawa shogunate and some 300 regional ''daimyo'', or feudal lords. Emerging from the chaos of the Sengok ...

, Mishima was renamed to Kariwa. In 1940, the town of Kashiwazaki became a city. After Kashiwazaki merged the surrounding areas, the district continued on to shrink. On April 1, 2005, the town of Oguni merged into the city of Nagaoka; and a month later, the towns of Nishiyama and Takayanagi merged into the city of Kashiwazaki. With this merger, Kariwa District has only the village of

left.

District Timeline

Recent mergers

* On April 1, 2005 - The town of Oguni was merged into the expanded city of Nagaoka. * On May 1, 2005 - The towns of Nishiyama and Takayanagi were merged into the expanded city of Kashiwazaki.

Notes

References

Districts in Niigata Prefecture {{Niigata-geo-stub